In 1935, in the Burgundian village of Valromey, Commissioner Desbordes was the very unpopular leader of the anti-alcoholic league. His own brother, Pimpin, is an unconditional defender of the vineyard. Pierre Moreau is, for his part, the representative of a hygienic drink, the "Koku-Kolu". The cafe owner's daughter, Rose, will find the man very to her liking and will manage to seduce him.

Dans un village bourguignon, une campagne antialcoolique se met en place ce qui gêne de nombreuses personnes.